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单词
Owl Nebula
释义
Owl Nebula
Encyclopedia
理学
行星状星云
释
Owl Nebula
夜枭星云
位于大熊星座的一个比较复杂的行星状星云。星表中的编号为M97和NGC3587。距离地球2030光年(621秒差距),视星等为9.9,年龄约8千年。又称猫头鹰星云。
Astronomy
Owl Nebula
夜枭星云
随便看
dense star cluster
dense subalgebra
dense subcategory
dense subgroup
dense subset
dense suspension flow
dense suspension up flow
dense wavelength division multiplex
dense wavelength division multiplexing
dense wavelength division multiplexing, DWDM
dense wavelength division multiplexing in metropolitan area network
dense wavelength division multiplexing,DWDM
densification
densification by sand pile
densified pupil imaging
densimeter
densimeter based on radioactivity
densimetry
densitometer
densitometry
density
density analysis
density arm
density bottle
density class
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